It meant I had to spend a bit more on the flue pipes and insulation because it ran so close to the house roof, and finishing it off was really hard because of it being beside the deck railing. But when it rains we're really grateful to have it so close.

Thanks for the concern - you raise good questions, although I'm quite confident in the deck.

The oven weighs around 300kg, and the deck is constructed on joists that run over the same bearer as the back of the house. I have also ensured that the legs of the oven base have the load spread across multiple boards.